Ill. Admin. Code tit. 50, § 2008.103
a) On or before March 1 of each year an issuer shall report the following information prescribed in Appendix P of this Part for every individual resident of this State for which the issuer has in force more than one Medicare supplement policy or certificate:
(Source: Amended at 16 Ill. Reg. 15452, effective September 29, 1992)